Question

An object moves along the x-axis. Its x coordinate is given
as a function of time as
x=7t-3
where x is in metre and t is in second. Its average speed
over the interval t=0 to t = 4s is​

Answer 1

Step-by-step explanation:

Avg speed if Final speed - Initial speed

Total time

final speed = 7(4)-3 = 25

initial speed = 7(0)-3 = -3

Avg speed = 25-(-3)

4

= 28/4 = 7